Why do people teabag eachother on COD BO2?

"Tea-bagging is primarily used to make one's death a more humiliating experience and provoking the other player. This action is most commonly performed in video games found within the first-person shooter genre; however, every game that has a crouch button and dead bodies is susceptible to this phenomenon. Tea-bagging is but one of the ways that the online first-person shooter community is forming a more juvenile identity in comparison with the other genres of video games."